Synonyms|95Antonyms|1|Broader|0Narrower|0Related|7

56 entries under sturdy topic. ×

6
ferric(adjective, strong, hard, tough)
3
steel(adjective, strong, hard, tough)
2
steely(adjective, strong, hard, tough)
1
dense(adjective, strong, hard, tough)
0
adamant(adjective, strong, hard, tough)
0
adamantine(adjective, strong, hard, tough)
0
astringent(adjective, strong, hard, tough)
0
austere(adjective, strong, hard, tough)
0
authoritarian(adjective, strong, hard, tough)
0
bitter(adjective, strong, hard, tough)
0
bullheaded(adjective, strong, hard, tough)
0
by the book(expression, adjective, idiom, strong, hard)
0
disciplinary(adjective, strong, hard, tough)
0
dyed-in-the-wool(adjective, strong, hard, tough)
0
firm(adjective, strong, hard, tough)
0
flinty(adjective, strong, hard, tough)
0
forbidding(adjective, strong, hard, tough)
0
frowning(adjective, strong, hard, tough)
0
grim(adjective, strong, hard, tough)
0
hang-tough(adjective, strong, hard, tough)
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APASmart Define. (2015). ferrous thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/ferrous/thesaurus/synonyms
ChicagoSmart Define. 2015. "ferrous thesaurus" https://smartdefine.org/ferrous/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, ferrous thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/ferrous/thesaurus/synonyms>.
MLASmart Define. "ferrous thesaurus" 13 April 2015. Web. 24 September 2026. <https://smartdefine.org/ferrous/thesaurus/synonyms>